[Tyrosine hydroxylase activity in two-dimensional monomolecular films].

The activity of a neurospecific enzyme of tyrosine hydroxylase (TH) in monomolecular films formed onto solid surface was studied. The data obtained show that the formation of two-dimensional films onto negative-charge surfaces by the Langmuir-Schafer technology does not lead to the inactivation of the enzyme. Neuroleptic trifluoperazine increased the activity of TH. Monomolecular films of TH may be used as a sensitive element of biosensors for primary monitoring of neuroleptic-like compounds.